Brick-molding apparatus.



PATBNTBD OCT. 9, 1906.

No. 832,645. I

P. P. WELTY.

BRICK MOLDING APPARATUS.

' APPLIOATION FILED FEB-14, 1906.

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No. 832,645. PATENTED 001?. 9, 1906.

P. P. WELTY.

BRICK MOLDING APPARATUS.

APPLIOATION 11.51) FEB-14.1906.

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PATENTED OCT. 9, 1906. P. P. WELTY.

BRICK MOLDING APPARATUS.

APPLICATION FILED FEB.14,1906.

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APPLICATION FILED FEB. 14, 1906.

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No. 882,645. PATENTED 0017.9, 1906.

' P. P. WELTY.

/ BRICK MOLDING APPARATUS.

APPLICATION FILED FEB-14.1906.

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5 ET A /0 UNITED STATES PATENT OFFICE.

BRICK-MOLDING APPARATUS.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed February 14, 1906. Serial No. 301,095-

.72) (1,66 whom it may concern:

Be it known that I, PETER P. WELTY, a citizen of the United States ofAmerica, residing at Columbus Grove, in the county of Putnam and Stateof Ohio, have invented certain new and useful Improvements inBrick-Molding Apparatus, of which the following is a specification.

This invention relates to devices for molding plastic compounds, and hasreference particularly to a brick-molding machine in which the molds areexpansible.

An object of this invention is to provide novel means for moving thesides and ends of the molds for the purpose of freeing the sec tions ofthe mold after the block or brick is formed in the usual manner, meansbeing also provided for returning the mold-sections to their properoperative positions.

A further object of this invention is to provide a suitable hopperhaving a compartment registering with each mold and means for permittingthe movement of the hopper with relation to the molds.

Furthermore, the invention consists in the novel troweling devicecarried by the hopper, whereby the contents of the molds have theirupper surfaces smoothed as the hopper is moved from over the said molds.

With the foregoing and other objects in view the invention consists inthe details of construction and in the arrangement and combination ofparts to be hereinafter more fully set forth and claimed.

In describing the invention in detail reference will be had to theaccompanying drawings, forming part of this specification, wherein likecharacters denote corresponding parts in the several views, in which-Figure 1 illustrates in elevation the front of a brick-molding machineembodying the invention. Fig. 2 is an end view thereof. Fig. 3 is a topplan view thereof. Fig. 4 is a front view with the molds elevated whichis the position they assume after the molding operation. Fig. 5 is atransverse sectional view. Fig. 6 is a plan view of the hopper with thetroweling mechanism detached. Fig. 7 is a detail view, partly insection, showing the ends of the mold and the support therefor. Fig. 8is a view in detail of a portion of the mechanism for moving the sidesof the molds. Fig. 9 is a view in elevation showing a portion of themechanism for moving the ends of the molds. Fig. 10 is a view inelevation of a side of a mold.

In the drawings, 1 indicates a suitable stand with extensionsZ, to whichthe mold and hopper carriage is hinged through the medium of the pivotsa, the said carriage having its front portion supported by the posts 3,secured to or formed with the stand 1. The stand is further providedwith braces 4, connected by ribs 5, which are designed to support thepallets 6.

The carriage comprises a rectangular frame formed by the ends 7 andsides 8. The rear of the end sections have shoulders 9, which abut thestuds or pins 10 on the extensions 2, whereby the rearward swing of thecarriage is limited.

The molds are made up of sections movable with relation to each other,the ends 1 1 of v the molds being formed with continuous bars 12,extending longitudinally of the carriage. The bars 12 are provided withthe depending arms 13, which are pivotally secured to the ends 7 of theframe, as at 13, more particularly shown in Fig. 7. By this arrangementthe ends of the molds are permitted a certain oscillatory movement. Thesides 14 of the mold have extensions forming arms 15,

which are pivotally connected to the frame of the carriage at 15 inorder that the sides 14 of the mold may also have an oscillatorymovement. Where the sides and arms merge, bosses 16 are formed providedwith transverse apertures to receive the threaded rods 17. The threadedrods are arranged in pairs extending in opposite directionslongitudinally of the carriage. Nuts 18 are threaded on the rods andengage the sides of the bosses, so that movement of the threaded rodscommunicates motion to the bosses and the sides of the mold. Owing tothe fact that the rods 17 are threaded nearly their entire length, itfollows that the sides of the mold may be adjusted through the medium ofthe nuts heretofore described.

The outer ends of the rods 17 extend through the apertures of yokes 19and are adjustable lengthwise through the medium of the nuts 20. Theyokes are pivoted approximately centrally to a lever 21 on each end ofthe carriage, and said levers are moved oppositely through a suitablemechanism, (to be hereinafter described,) which movement is communicatedto the yokes, causing a reciprocation of the threaded rods. As themovement of the threaded rods is communicated to the sides of the molds,it follows that the said sides may be displaced from the ITO block orbrick molded to the extent of freeing the brick from the molds entirelyin order that the said brick will not be disturbed when the carriage isswung to a vertical position, it being understood that the ends of themolds have also been moved through the mechanism (hereinafter described)to free the ends of the bricks.

The ends of the levers 21 have apertures for the reception of the links22, two of which are provided approximately duplicated. The ends of thelinks extending through the apertures of the levers are threaded andhave nuts run thereon forming abutments which engage the levers for thepurpose of giving 'motion thereto, and since these nuts are adjustableit follows that the throw of the lever may be changed according to theadjustment of said nuts. The inner ends of the links are oppositelycurved and are pivotally connected to the operating crank-handle 23,which is pivoted to the carriage.

When in position to close the molds, the pivotal point of each link isbeyond the pivot of the crank-handle, and hence the said links overliefor a portion of their length. When i the operating-handle is moved todraw the links inward, the curve of the links permits 7 the pivots ofthe links to ass the plane of the pivot of the crank-han le in oppositedirections to afford a self-locking combination. In Fi 1 the operatingmechanism is illustrate in a position to hold the sides of the mold inoperative position with relation to the ends thereof, while in Fig. 4the operating crank-handle is turned on its pivot in order to show thelinks projected, which is the position the links and levers assume whenthe sides of the molds are retracted.

In order to move the ends of the molds, I provide arms 24, which arepivoted at 25 to the carriage, and said arms have cross-arms 26, to theends of which the curved links 27 28 are pivoted. The links arepivotally connected to the arms 13 of the bars 12, and as the said linksare moved the arms 13 are oscillated with relation to the sides of themolds, the said arms 13 being moved oppositely through the linkconnections heretofore described. When the arms 24 have been movedinitially to operate the links and the ends of the mold, further lift onsaid arms causes the bar 12 to contact with the side of the carriage andresults in the elevation of the carriage to the position illustrated inFig. 4, and hence the movement of the carriage is entirely under thecontrol of the said arms 24 so far as its pivotal or swinging motion isconcerned. It is well to observe that but a slight movement of the arms24 is required to move the ends of the mold and will, it is thought, befully appreciated.

The hopper 29, which isused in connection with the mold-sections, has aseries of par- 6 5 titions therein corresponding to the walls of themold, so that material placed in the hopper will find its way to themolds, where it is pressed into shape. The hopper 29 is provided withguides 30, which guides engage the tracks 31, secured to the carriage inany suitable manner, for the purpose of permitting the hopper to bemoved to a position over the mold or out of line therewith. Handles 32are attached to the ends of the hopper for the purpose of manipulation.As the hopper is moved from alinement with the molds the trowelingdevice 33 exerts pressure on the upper surface of the brick to smoothand give a perfect finish. The troweling device has lugs 34 mounted onthe pintles 35, which are formed with the hopper. The outer edge of thetroweling device is held depressed by the spring 36. The inner ends ofsaid springs are seated on studs 37, carried by the hopper, and theouter ends of said spring are likewise seated on studs 38 formedintegral with the troweling device.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a brick-molding apparatus, a stand, a mold and hopper carriagepivoted thereon, sectional molds having movable ends and sides, meansfor moving the ends, arms for I 4 carrying the sides of the molds, rodssupporting and moving the sides of the molds, and means forreciprocating the rods.

2. In a brick-molding apparatus, a suitable stand, a mold and hoppercarriage pivoted thereon, molds comprising movable sides and ends, thesaid sides having arms pivoted to the carriage, rods extending throughthe arms, and means for reciprocating the rods.

3. In a brick-molding apparatus, a stand, a mold and hopper carriagepivoted thereto, molds having movable sides and ends, pivotallyconnected to the carriage, rods arranged in pairs extending fromopposite ends of the carriage, one pair of rods being connected tocorresponding sides of the molds, the rods on the opposite end of thecarriage being connected to the opposite sides of the molds, and meansfor reciprocating the rods to move the sides of each mold in oppositedirections.

4. In a brick-molding apparatus, a suitable stand, a mold-carriagepivoted thereto, molds having movable sides and ends, arms on the sidesof the molds, threaded rods extending through the arms, nuts on the rodsengaging the sides of the arms, the said arms extending in oppositedirections from the ends of the carriage, the rods from one end molds,means for supporting the hopper free of the molds and permitting itsreciprocation with relation to the molds, and a troweling device carriedby the hopper and means for pressing the said troweling device intocontact with the material in the molds.

6. In a brick-molding apparatus, a suitable stand, a mold-carriagethereon, molds having sides and ends pivotally connected to thecarriage, suitable links in connection with the ends of the molds, theinner ends of said links overlying, arms pivoted to the carriage,cross-arms carried by the first-mentioned arms, means for pivotallyconnecting the overlying ends of the links to the said cross-arms,whereby the movement of the said cross-arms will move the said links inopposite directions, and means for moving the sides of the molds.

7. In a brick-molding apparatus, a suitable stand, a carriage pivotedthereto, molds comprising movable sides and ends, bars to which the endsare secured to be moved in unison, links connected to said bars, theopposite ends of the links overlying, carriageelevating arms pivoted tothe said carriage, cross-arms thereon, to which the links are pivoted,the initial movement of the said arms tending to actuate the links, andthe secondary movement of said arms tending to elevate the carriage.

8. In a brick-molding apparatus, a suitable stand, a mold and hoppercarriage-pivoted thereon, sectional molds having movable sides and ends,rods extending from opposite ends of the carriage and connected toopposite sides of the molds, yokes connecting the rods at each end ofthe carriage, levers to which the yokes are pivoted, and means formoving the levers in opposite directions.

9. In a brick-molding apparatus, a suitable stand, a mold and hoppercarriage pivoted thereon, sectional molds having movable sides and ends,rods extending from opposite ends of the carriage and connected toopposite sides of the molds, yokes connecting the rods at each end ofthe carriage, levers to which the yokes are pivoted, links connected tothe ends of the levers, and a crank-handle to which the ends of thelinks are pivoted.

10. In a brick-molding apparatus, a suitable stand, a mold and hoppercarriage pivoted thereon, sectional molds having movable sides and ends,rods extending from opposite ends of the carriage and connected toopposite sides of the molds, yokes connecting the rods at each end ofthe carriage, levers to which the yokes are pivoted, links connected tothe levers, the said links having curved inner ends adapted to overlieeach other, and a crank-handle pivoted to the carriage to which the saidlinks are pivoted.

In testimony whereof I aflix my signature, in the presence of twowitnesses, of February, 1906.

PETER P. WELTY.

Witnesses:

KATE DONAHUE, F. H. DOWNING.

this 8th day

